Promethium 145 <p>The branch that is almost complete and in the Fluorine configuration experiences stress-energy and is therefore despite the stable configuration on a branch level, unstable still and will decay to Neodymium with extra neutrons. </p>
Thorium 231 <p>Two "left over"neutrons" form another D pair and decays into Protactinium by forming a fresh Li nuclet. (see Pa and U235)</p>
